<template>
  <div class="login_container">
    <div class="login_box">

      <div class="avatar_box">
        <img class="avatar_box_img" src="../assets/R-C.jfif" alt="Logo">
      </div>

      <el-form ref="loginFormRef" label-width="0px" class="login_form" :model="login_form" :rules="loginFormRules">

        <el-form-item prop="username">
          <el-input prefix-icon="User" v-model="login_form.username"></el-input>
        </el-form-item>

        <el-form-item prop="password">
          <el-input prefix-icon="Lock" v-model="login_form.password" type="password"></el-input>
        </el-form-item>

        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>

    </div>
  </div>
</template>

<script>
import {ElMessage} from "element-plus";

export default {
  data() {
    return {

      login_form : {
        username: 'admin',
        password: '123456',
      },

      loginFormRules: {

        username: [
            { required: true, message: '请输入用户名 ', trigger: 'blur' },
            { min: 3, max: 10, message: '用户名长度需在 3-10', trigger: 'blur' },
        ],
        password: [
          { required: true, message: '请输入密码 ', trigger: 'blur' },
          { min: 6, max: 15, message: '密码长度需在 6-15', trigger: 'blur' },
        ],

      },

    }
  },
  methods:{
    resetLoginForm(){
      this.$refs.loginFormRef.resetFields();
    },
    login(){
      this.$refs.loginFormRef.validate( async (isValid) => {
        // console.log(isValid)

        if (isValid) {
          const {data:res} = await this.$http.post('login', this.login_form);
          if(res.meta.status !== 200){

            ElMessage.error('登录失败')
          }else{
            ElMessage.success({message: '登录成功', showClose: false,})

            window.sessionStorage.setItem('token', res.data.token)
            this.$router.push('/home')
          }
        }

      })
    }
  }


}
</script>

<style scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}

.login_box {
  width: 450px;
  height: 260px;
  background-color: #f2f2f2;
  border-radius: 5px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  /*margin: 0 auto;*/

}

.avatar_box {
  height: 100px;
  width: 100px;
  border: 1px solid #000;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;

  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);

  background-color: #fff;
}

.avatar_box_img {
  height: 100%;
  width: 100%;
  border-radius: 50%;
  background-color: #eee;
}

.btns{
  display: flex;
  justify-content: flex-end;
}

.login_form{
  position: absolute;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
  bottom: 0;
}
</style>
